<template>
	<view class="my-settle-container">
		<!-- 全选 -->
		<label class="radio" @click="changeAllState">
			<radio color="#C00000" :checked="isFullCheck" /><text>全选</text>
		</label>
		<!-- 合计 -->
		<view class="amount-box">
			合计： <text class="amount">￥{{checkedGoodsAmount}}</text>
		</view>
		<!-- 结算按钮 -->
		<view class="btn-settle" @click="settlement">
			结算({{checkedCount}})
		</view>
	</view>
</template>

<script>
	import { mapState, mapGetters, mapMutations } from 'vuex'
	export default {
		name:"my-settle",
		data() {
			return {
				// 倒计时秒数
				seconds: 3,
				// 定时器
				timer: null
			};
		},
		computed: {
			...mapState('m_user', ['token']),
			...mapState('m_cart', ['cart']),
			...mapGetters('m_cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
			...mapGetters('m_user', ['addstr']),
			isFullCheck() {
			  return	this.total === this.checkedCount
			}
		},
		methods: {
			...mapMutations('m_cart', ['updateAllGoodsState']),
			...mapMutations('m_user', ['updateRedirectInfo']),
			changeAllState() {
				this.updateAllGoodsState(!this.isFullCheck)
			},
			// 用户点击结算按钮
			settlement() {
				if(!this.checkedCount) return uni.$showMsg("请选择要结算的商品！")
				
				if(!this.addstr) return uni.$showMsg("请选择收货地址！")
				
				// if(!this.token) return uni.$showMsg("请先登录！") 
				if(!this.token) return this.delayNavigate() 
				
				this.payOrder()
			},
			// 支付
			async payOrder() {
				// 1、创建订单
				// 1.1、组织订单的信息对象
				const orderInfo = {
					// order_price: this.checkedGoodsAmount,
					order_price: 0.01,
					consignee_addr: this.addstr,
					goods: this.cart.filter(x => x.goods_state).map(x => ({
						goods_id: x.goods_id,
						goods_number: x.goods_count,
						goods_price: x.goods_price
					}))
				}
				// 1.2、发起请求创建订单
				const { data: res } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
				if(res.meta.status !== 200) return uni.$showMsg('订单创建失败！')
				// 1.3、得到服务响应的订单编号
				const orderNumber = res.message.order_number
				
				// 2、订单预支付
				// 2.1、发起请求获取订单的支付信息
				const {data: res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', {order_number: orderNumber})
				// 2.2、预付订单生成失败
				if(res2.meta.status !== 200) return uni.$showMsg('预付订单生成失败！') 
				// 2.3、得到订单支付相关的必要参数
				const payInfo = res2.message.pay
				
				// 3、发起微信支付
				// 3.1、调用uni.requestPayment() 发起微信支付
				const [err, succ] = uni.requestPayment(payInfo)
				// 3.2、未支付完成
				if(err) return uni.$showMsg('订单未支付！')
			  // 3.3、完成了支付，进一步查询支付结果
				const {data: res3} = await uni.$http.post("/api/public/v1/my/orders/chkOrder", {order_number: orderNumber})
				// 3.4、检测到订单未支付
				if(res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
				// 3.5、检测到订单支付完成
				uni.showToast({
					title: '订单支付完成！',
					icon: 'success'
				})
				
			},
			// 演示导航到my页面
			delayNavigate() {
				this.seconds = 3
				
				this.showTips(this.seconds)
				
				this.timer = setInterval(() => {
					this.seconds--
					
					if(this.seconds <= 0) {
						clearInterval(this.timer)
						
						uni.switchTab({
							url: "/pages/my/my",
							success: () => {
								this.updateRedirectInfo({
									openType: "switchTab",
									from: "/pages/cart/cart"
								})
							}
						})
						
						return
					}
					this.showTips(this.seconds)
				}, 1000)
			},
			// 展示倒计时的提示消息
			showTips(n) {
				uni.showToast({
					icon: "none",
					title: '请登录后再结算' + n + '秒之后自动跳转到登录页',
					mask: true,
					duration: 1500
				})
			}
		}
	}
</script>

<style lang="scss">
.my-settle-container {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 50px;
	background-color: white;
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-size: 14px;
	padding-left: 5px;
	
	.radio {
		display: flex;
		align-items: center;
	}
	
	.amount-box {
		.amount {
			color: #C00000;
			font-weight: bold;
		}
	}
	
	.btn-settle {
		background-color: #C00000;
		height: 50px;
		color: white;
		line-height: 50px;
		padding: 0 10px;
		min-width: 100px;
		text-align: center;
	}
}
</style>
